Apparatus for the manufacture of artificial threads



Sept. 13, 1932. F, MELMS 1,877,002

APPARATUS FOR THE MANUFACTURE OF ARTIFICIAL THREADS- Filed Nov. 13. 1928 6 1 lnl... 71/11/111/1/1/171/1/1/11/1/1/1/1/1/1/1/1/1/1/11/ Patented Sept. 13, 1932 PATEN OFFICE FRITZ MELMS', or Premium. GERMANY, AssmNoR TO'I. e. FARBENINDUSTRIE Ax TIENGESELLSCHAFT, or- FRANKF'ORT-ON-THE-MAIN, GERMANY, A aconrorwrron OF GERMANY APPARATUS non THE MANUFACTURE or ARTIFICIAL, THREADS.

Application filed November 13, 1928, Serial No.319l057, and in Germany November 15, 1927. 7'

The present invention relates to a process for the manufacture of artificial threads and to a suitable apparatus therefor.

In the manufacture of artificial threads the spinning solution is forced through nozzles which have a few or many openings according to the character of the thread to be spun. The spun threads are led over a gulde to the collecting devices. When the threads are to have the character of staple fiber, nozzles are used Which have up to 1000 openings. If it is desired to collect such bundles of filaments on the collecting device (spool, reel or the like) in the form of a final thread having a high total titer, it is necessary that the separate bundles of filaments, collected together from the several nozzles, should be both produced and led to the common thread guide under completely similar conditions in order that the product may have proper I at equal distances from all points of the arc,

or on a spherical surface, with the thread guide at the center of the spherical surface and must be arranged so that the axis of each nozzle passes through the thread guide. The desired position of the nozzles may be obtained, for instance by giving the main-duct that supplies the spinning solution the form of a circular are around the guiding eye and giving the several pipes which branch from the main-duct and carry the individual spinning nozzles the same form and size as in the construction illustrated in Figs. 1 and 2 of the annexed drawings, presently to be described. It is also possible to obtain the desired position of the spinning nozzles by using a straight main supply duct and bygiving branch pipes carrying the spinning nozzles suitable difierent forms or sizes so that the nozzles are equidistant from the common thread guide. The former arrangement em- I bodying the curved main-duct is to be recom- "mended, when staple fibcr is to be made without the use of spinning pumps.

"Each SPlIlIllflg nozzle may contain a number of spinning openings; for example, each nozzle may have upto 1000 openings, so that a fiber bundle consisting of 20,000 filaments would'be produced by collecting the bundles of filaments from 20 of such nozzles arranged according to the present'invention. f

The invention leads to a considerably increased production with a spinning machine 'of-normal size, since more spinning nozzles can be accommodated in the spinning trough and thicker threads can be Wound on the collecting device. 1

According to thepurpose for which the threads are to beused, different collecting devices may be adopted. If the bank of threadis to be cut immediately or is to be removed in endless condition in a known manner, a reel may be used. If theneutralization and subsequent treatment is to occur 'by sucking or pressing the liquid used through the thread on'the collecting device, it is advantageous to use spools 0r drums which are perforated or otherwise made permeable, From these the threadmay be wounded on spools, several threads being brought together,if necessary, in the usual commercial form, such as skeins, cops, disc-spool windings or the like; or the thread may be worked up into "cut fibers. w I i I t Obviously a largefnumber of apparatus may be constructed, each embodying these principles. For the sake of illustratlon, we 7 shall describe a suitable form with the aid of the appended drawing. The invention isnot,

however, to be limited to this one ex'ample.

branch. spinning pipes f. The nozzles 0 are all equidistant from the thread guide d Where the bundles of filaments are collected, after each has passed through the bath under the same conditions. From the thread guide the final thread having a high total titer is then collected on the drum 6 Which may be made permeable in order to permit neutralization and subsequent treatment of the thread While it is Wound thereupon.

I claim:

1. An apparatus for the manufacture of uniform artificial threads of high total titer comprising an open spinning trough containing the setting liquid, a supply pipe for the spinning solution, a number of spinning pipes'branched from the supply pipe and pro vided Withspinning nozzles havlng a number of openings, said nozzles being so arranged as to lie on a curved surface, the axes of all the nozzles being directed to the center of the surface, and at this center at a point equidistant from the nozzles a thread guide for collecting the filaments formed at the nozzles and for guiding the collected fiber bundle out of the setting trough.

2. An apparatus for the manufacture of uniform artificial threads of high total titer comprising an opening spinning trough conas to lie on a curved surface, the axes of all the nozzles being directed to the center of the surface, at this center at a point equidistant from the nozzles a thread guide for collecting the filaments formed at the nozzles and .for' guiding the collected fiber bundle out of the setting trough, and in combination a device for Winding up the bundle of filaments collected at the thread guide.

In testimonywhereof, I affix my signature.

FRITZ MELMS.

and for guiding the collected fiber bundle out 7 I of the setting trough. I

3. An apparatus for'the manufactureof uniform artificial threads of high total titer comprising an open spinning trough containing the setting liquid, a curved supply pipe in form of a circular arc for the spinning solution, a number of spinning pi es branched from the supply pipe and provi ed With spinning nozzles having a' number of openings, said nozzles beingso arranged as to lie on the arc of a circle with their axes directed to a point outside of the spinning trough and equidistant from the nozzles, and at said point a common thread guide for collecting the filaments formed at the nozzles and for guiding the collected fiber bundle out of the setting trough.

4. An apparatus for the manufacture of uniform artificial threads of high total titer comprising an open spinning trough containing the setting liquid, a supply pipe for the spinning solution, a number-of spinning pipes branched from the supply pipe and provided With spinning nozzles having a number of openings, said nozzles being so arranged lit 

